Ice skate



F. MHCMILLAN May 17, 1932.

ICE SKATE Filed Dee, 22. 1951 Patented May 17, 1932.

PATENT GFFICEE FRANK MACMIVILLAN, OF

FORT LEE, NEW JERSEY- rcEsKArn f Applicationled December 22, 1931. Serial No..582,52 6

Thispinvention relates to ice-skates,` its principal objectbeing to provide askate hav ing an inherently resilient lrunner so constructedand muntedin relation to the body of the skate that when lateral pressure is eX- erted on the runner by the skater during the execution of a curve the runner is temporarily bowed or bent in conformity with the Curve and is brought into extended contact with the l ice; lthus enabling the curve to be taken at highV spe'edwith facility.

Another objectof 'the'invention is` to provde such a. skate wherein the resilient run'- nerfpresents an'extended engaging surface to the ice duringstraight-ahead skating.

further object` :of the invention is to provide in such a skate means whereby'the runner can be readilyattached to or detached from the vbody ofthe skate, as desired.

. 2@ 'With these and other objectsin view my invention comprises features of novelty which will be hereinafter. described; 4'the scopeof thefinvention then` being defined in the appended fclailns.. n

,Inth'e drawings-'- Fignre l isaside elevation of a skate einbodying the principle ofniy invention.

Fig.l 2 isa bottom view of the skate, showingthe runner as bowedor flexed from end to end.

Figs. 3 and 4.- are transverse horizontal sections through the respective ends ofthe body bar,V as on the lines 3 3 and fil-4 of Fig. l.

Fig. 5l is a transverse vertical section through, the Vpivotal connection at the forward jpo'rtion of the runner, as on the line -'of Fig.. 1,'

Fig. 6 is a section similar to Fig. et of the forward end of the body bar showing a slight modilieatibn of the pivot retaining slot in the bar.

Fig. 7 is aside elevation, partly in section, of the body bar and runner of a skate embodying .a modified forni of pivotal connection for the runner.

Fig. 8 is a transverse vertical section,..as on the line S-Sof Fig. 7.

The skate body or shoesupport illustrated in thedravvings embodies a bar 10,7preferably a-.metal tube of rectangular cross-section, and

spaced sole and heel,platesl1,`l2, respective'- steel, having its upper edge stiffenedthrough 7 vout its length by Ian additonal thickness of metal l5, is arranged underand longitudinalvly of the bar l0 and has vertical pivotal con`- nections `with the latter at points'v forwardly and rearwardly of the adjacent supporting posts. in the present instance one of th'efeonnections is located-rearwardly"of the heel plate and the other connectionunderE the/sole plate.

The bottom` of the runner 14 is. slightly downwardly curved or inclinedfronrits extremities toward-.its mid-portionto afford a longitudinally convex ice-engagingv surface, andhence when lateral pressure is exerted by the skater upon the slanted runner during the execution 'ofa curve, the ruimer, by virtue of its resiliency and its spaced-pivotal connections to the body bar; is bowed orV bent throughout its length in 'conformitywith the curVe,.-as indicated finFig". 2,. and the bot'- toin of the runner isbrought'into extended Contact with the rice, thus' enabling the Ycurve to be taken at high speed with facility. -Vhen the curve-is completed and-the skate is raised from the ice the runner automatically resumes its normal or straight position..Since the runner lis supported advj'acentits ends the lower intermediate portion thereof is slightly sprunglaterally .bythe weight ofthe skater during straight-ahead skating, therebypresenting an extended Vengaging surface' to the ice. The stii'ening orreinforcingof the top of the blade more uniformly distributes "the weight and pressure of the skater between the pivot connections and prevents undue `flexing of the thin acting portion of-theblade and the raising' ofv itsi midportion: fromthe ice'.v

In the presentv .instance the pivotal connections between .the runner and the bar ll0 include knees 16 fast on the reinforcedportionA of, the runner andhaNin-g. 11p-standing A studs 17, provided with oblong, orulaterallyreduced-head portionsl8. a .The bt'toinv of .the tubular Ibody bar `has formed therein adjacent its respective ends corresponding T-slots 19, into the cross-portions of which the heads 18 of the respective studs 17 of the runner, when the latter is manually positioned below and parallel with the bar, can be freely entered and the runner then moved endwise relatively to the bar to position the studs in the longitudinal portions of the respective slots, thus pivotally interlocking the respective studs with the body bar. Suitable means to lock the pivots in the longitudinal portions of the slots 19 is provided, which means, in a simple form thereof, comprises a cross-bolt 2O extendingthrough orifices in the sides of the bar in close relation to the head ofthe forward stud 17, as seen in Fig. 3. Thus the dual pivotal connection between the runner and the body bar is eifectually maintained and at the same time the runner has capacity for slight movement of the rearward pivot toward and from the other pivot to accommodate the flexure of the runner. By removing the cross-bolt 20 from the body bar the runner can be readily detached for convenience of repair or replacement.

The slot at the forward end of the body bar may be a straight slot extending longitudinally of the bar, as shown at 190 in 6, in which case the pivots are entered in the slots at the respective ends of the bar as follows: rlhe runner being positioned at a right angle to the bar and with the head 18 of the forward stud adjacent and parallel with the i slot 190, such head is freely entered in the slot and the runner bodily swung to a position longitudinally of the bar to cause the inserted head to overlie the slot and the head of the rear stud to be located at the crossportion of the adjacent T-slot 19 and entered therein. This done the runner is slid longitudinally of the body bar to engage the head of the rear stud with the leg of the T-slot,

n thus interlocking the respective ends of the runner with the bar.

In the modification shown in Figs. 7 and 8 the pivot studs 17 are prolonged and loosely fitted in vertical holes in the top and bottom of the bar 10, the upper ends of the studs projecting above the bar and being threaded to receive retaining nuts 21. By removing the nuts from the studs the runner can be released and detached from the body bar.

nections between said runner and the body at points adjacent the respective ends of the runner.

2. An ice-skate comprising a body including a shoe-support, a resilient runner having a longitudinally convex ice-engaging surface and reinforced along its upper edge, and means providing vertical pivot connections between said runner and the body at points adj acent the respective ends of the runner.

3. An ice-skate comprising a bar, sole and heel plates and supports between said plates and the respective end portions of the bar, a resilient runner having a longitudinally con- Vex ice-engaging surface, and vertical studs fixed to said runner and pivot-ally mounted in the bar at points forwardly and rearwardly of the respective supports.

el. An ice-skate comprising a body including sole and heel plates, a resilient runner detachably mounted on said body and having a longitudinally convex ice-engaging surface, and means providing Vertical pivot connections between said runner and body, one of said connections located under. the sole plate and the other connection rearwardly of the heel plate.

5. An ice-skate comprising a body including sole and heel portions, a resilient runner having a longitudinally convex ice-engaging surface and a reinforced upper edge, vertical studs fixed to said runner and pivotally mounted in said body at points adjacent the respective ends of the runner, and means for detachably securing said studs to the said body.

6. In an ice-skate, a body bar having slots adjacent its respective ends, a resilient runner, vertical studs fixed on said runner in spaced relation and having head portions to be entered in the respective slots and slid into interlocking engagement therewith by a longitudinal movement of the runner, and means for maintaining said heads in locked position.

7 In an ice-skate, a body bar having locking slots adjacent its respective ends, one of said slots being' straight and the other T- shaped, a runner, vertical studs xed on said runner and having T-heads for engagement with the slots, one of said heads being adapted to enter the straight slot when the runner is at an angle to the bar and the other head being adapted to enter the cross-portion of the T- slot when the runner is swung to a position longitudinally of the bar, so that the runner can be slid longitudinally to effect the interlocking engagement of the heads with the respective slotted portions of the bar, and locking means for the head at the end of the bar adjacent the straight slot.

8. An ice-skate comprising a body including a shoe-support, a resilient runner having a longitudinally convex ice-engaging surface,

and spaced vertical pivot conl'l'ections between the runner and body, adjacent each end of the' runner, one of the pivots being free to move' towards the other pivot when the runner is curved. h

Signed at New York, in the county of Newi York and State of New York, this 21st day 0f December, A. D. 1931.

FRANK MAGMILLAN. 

